Automatic registering photographic apparatus



(No Model.)

E.E. MOORE. AUTOMATIC REGISTERING PHOTOGRAPHIG APPARATUS.

No. 459,411. Patented Sept. 15, 1891.

UNITED STATES PATENT OFFICE.

ELLIS E. MOORE, OF SYRACUSE, NElV YORK.

AUTOMATIC REGISTERING PHOTOGRAPHIC APPARATUS.

SPECIFICATION forming part of Letters Patent No. 459,411, datedSeptember 15, 1891.

Application filed January 6, 1891. Serial No. 376.850. (No model.)

To all whom it may concern.-

Be it known that I, ELLIs E. Moonn, of Syracuse, in the county ofOnondaga, in the State of New York, have invented new and usefulImprovements in Automatic Registering Photographic Apparatus, of whichthe following, taken in connection with the accompanying drawings, is afull, clear, and exact description.

My invention relates to devices for automatically registering andindicating the number of exposures made in a photographic apparatusadapted to use a continuous strip or sheet of film or sensitized paperof any kind, which is mounted upon rolls in a frame which is detachablefrom the case or otherwise.

My object is to register the successive exposures and numericallyindicate them, so that the operator can always know the exact number hehas remaining not used by means of a geared and numbered disk or dialand a differential feed-gear meshing therewith and actuated by therotation of the axis of an idler-roll, upon which the feed-gear ismounted and which is frictionally rotated by the contact of the sheet offilm therewith whenever the sheet is moved by the winding up of it ontothe winding-roll after each exposure.

My invention consists in the several novel features of construction andoperation hereinafter described, and which are specifically set forth inthe claims hereto annexed. It is constructed as follows, reference beinghad to the accompanying drawings, in which- Figure 1 is an elevation ofthe idler-roll, the film-sheet, alongitudinal section of part of thecasing, and of the detachable film-holding frame, and an edge view ofthe register. Fig. 2 is an isometrical elevation of a camera with myregister attached thereto. Fig. 3 is a vertical longitudinal section ofthe register detached. Fi at is a top plan view of the same. Fig. 5 is adetail of the end of the axis of the idler and of the screw-pindetaehably connecting the differential feed-gear to the register. Fig. 6is alike view of the same parts differing somewhat in their constructionfrom that shown in Fig. 5. Fig. 7 is a like View of the same parts,showing still another construc tion. Fig. 8 is a top plan of a registerin which the differential feed-gearis mounted on top of theregistering-dial and geared pinions mounted upon the axis of theidler-roll and engaging with both said gear and said dial, an openingbeing cut through the differential gear to permit the inspection of thefigures upon the registering-dial.

A is the camera, and 1 is a side of thcframe holding the film 2, saidframe not being shown in full, as it is of ordinary construction and isnot a part of my invention.

An idler-roller 3 is journaled upon the axis at in the sides of saidframe, and the film passes over it and bears with frictional contactagainst it, so that said roller is rotated by the winding up of the filmafter an exposure is made in the usual manner. One end of this axis iseither drilled and screw-threaded to receive the threaded axialextension 5 or made with an angular mortise to receive an extension oflike form, or with two or more recesses to receive pins or studs uponthe inner end of such extension, and all these forms of such extensionare detachable from the axis. The outer end of this extension issquared, as shown, for the reasons hereinafter stated.

13 is the register, comprising a casing (3, re cessed to receive theregistering-dial '7, geared on its periphery, and provided with thefigures on its outer face, substantially as shown, and also to receivethe differential feed-gear S. The registering-dial is mounted upon acentral pivot. The feed-gear S is provided with a central opening ofproper form and size to fit upon the angular extension of the axis, oris otherwise secured thereto. An arm 9, mounted upon the case, extendsover the center of the differential gear and affords a bearing for theouter end of the axial extension when desired; A pointer integral withthe differential gear indicates when it has made a full revolution, andalso when the idler-roller has made a full rotation, and also when thepaper has been moved the length of one negative, said rollerbeing of acircumference equal to said length of a negative. The registering-dial,as shown, has one hundred teeth or cogs, and the differential feed-gearhas one less, so that when the feed-gear makes a full revolution, asindicated as aforesaid, the registering-dial will revolve one cog lessthan a full revolution, and thus register one upon it with eachrevolution of said feed-gear.

ICO

hen I wish to remove the frame from the camera, I remove the extension,and replace it when the frame is replaced.

In Fig. 8 the feed-gear is on top of the registering-dial, and both aremounted upon a single central pivot. A geared pinion 10 engages With thefeed-gear. A smaller geared pinion under the pinion 10 engages with theregistering-dial, and both pinions are mounted upon the axial extensionsand rotated by its rotation. In this construction there is one less cogupon the feed-gear than upon the dial, and said gear has a perforationexposing the figures upon the dial; also, it requires several rotationsof the pinions to rotate the feed-gear a full revolution and the dialone cog less than a full revolution and the size of the idler-rollershould be reduced in proportion to the difference in the diameters ofthe feed-gear and the pinion 10; also, both of these pinions should havethe same number of cogs. The effect of this latter differential.rotation of the feed-gear and the dial is to shift the dial one figureeach rotation, as in the other construction. The ister is secured to thecamera-case by screws, as shown.

WVhat I claim as my invention, and desire to secure by Letters Patent,is

1. The combination, with the camera and the frame carrying thenegative-film, the roller in said frame, and the removable extension ofthe axis of said roller, of differential feed and registering gearsactuated by the rotation of said roller.

2. Differential feed and registering gears in engagement, in combinationwith an idler engaging therewith and mounted upon and 1'0- tated by therotation of the removableouter section of the axis of the film-roller inacamera.

In Witness whereof I have hereunto set my hand this 18th day ofNovember, 1890.

ELLIS E. MOORE. Witnesses:

H. P. DENISON, C. IV. SMITH.

